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Aneli [31]
2 years ago
5

5 (15pts, 5pts each) In △ABC below, ED = 6 cm, EC = CB, and AC ⊥ BE . If AC = 12 cm and AB = 13 cm:

Mathematics
1 answer:
Y_Kistochka [10]2 years ago
8 0

Answer:

i dont even understand this can u pls place an attachment of the problem pls

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Expand the expression and combine like terms: 2(−14+r)−(−3r−5)
Serggg [28]
2r-20 is the answer combining the like terms and solving.
4 0
3 years ago
I am greater than 54 fewer tens than 90?
Lubov Fominskaja [6]
In all cases, we will let x represent the number.
1) 54 tens = 540
90 - 540 = -450
x > -450

2) x < 36 and x > 24
24 < x < 36

3) 8 tens and 5 ones = 80 + 5 = 85
x > 85

4) x > 27
x < 33
And the value in the ones place is less than the value in the tens place, so
30 ≤ x ≤ 32
6 0
3 years ago
Jason bought 5 balloons . each balloon cost $.95 . how much did he pay altogether
Salsk061 [2.6K]

Answer:

4.75

Step-by-step explanation:

5 times $.95. equals $4.75

4 0
3 years ago
Read 2 more answers
Researchers measured the data speeds for a particular smartphone carrier at 50 airports. The highest speed measured was 72.6 Mbp
Lapatulllka [165]

Answer:

a. 54.05 Mpbs.

b. 2.745... standard deviations.

c. The z-score is 2.745....

d. The carrier's highest data speed is significantly high.

Step-by-step explanation:

a. The difference between the highest measured data speed and the mean is 72.6 - 18.55 =  54.05 Mbps.

b. The amount of standard deviations of 54.05 Mbps is equal to this value divided by the standard deviations, so we yield \frac{54.05}{19.69} = 2.745... standard deviations.

c. The z-score is equal to the difference between the mean and a data point in standard deviations, so the z-score is 2.745....

d. 2.745... is not between -2 and 2, so the carrier's highest data speed is not insignificant - so it's significantly high.

8 0
3 years ago
I need answers please
lakkis [162]

Answer: the first one

Step-by-step explanation:

It is the only one that is right

8 0
3 years ago
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